He has repeatedly complained that his relationship with his daughter has broken down and made numerous public appeals for her to get in touch with him, including an appearance on Good Morning Britain.

"Meghan really hoped Thomas wouldn't leak the letter", the source said. I can't tell you how frustrating it is to see that'.

His intervention comes amid reports of a rift between the pregnant Duchess and her father, Thomas Markle.

It's claimed Samantha - an outspoken critic of the Duchess - will appear in two TV documentaries, chat shows, a book and $2,600-an-hour interviews to talk about her niece or nephew and relationship with Meghan.

Clooney and his wife Amal attended Meghan's wedding to Prince Harry a year ago when the American actress became the newest addition to the British royal family. "I rarely if ever go "below the line" on social media or news websites and read people's comments. there's a large minority who seem to think that all the normal rules of society don't apply to the internet".

"Either you know or be [quiet]", she said.

While royal watchers know what the Cambridge trio calls their royal grandpa, many are wondering what Prince Harry and Meghan's royal baby will call him.

When Kensington Palace first announced the couple was expecting a baby, it said the child was due sometime in the spring.